Part 76

Fracture of the bones composing the _pelvis_ occasionally takes place, but can be produced only by the application of great force, as by a loaded vehicle passing over the body, or by a fall from a great height. The accident is usually attended with serious injury of the viscera contained in the pelvic cavity, or in that of the abdomen; they may be either ruptured, or lacerated by sharp projecting spiculæ, or merely bruised. The nature and extent of the injury is not easily ascertained. There is great pain on motion of the body or of the limbs, and usually extensive extravasation of blood in the soft parts; these circumstances, along with the symptoms that may arise from internal organs which have been injured, and a knowledge of the way in which the injury was inflicted, lead to a strong suspicion of fracture of the pelvis.

A portion of the crest of the ilium may be broken off, without serious mischief ensuing, and may unite favourably. More extensive fractures, deeper in the pelvis, as in the neighbourhood of the acetabulum, are attended with excruciating pain on the least motion; in these the existence of fracture may be suspected from the first, but the extent of the injury is not fully known till after death. Fractures near the symphysis, and of the rami, either of the os pubis or ischium, are usually attended with injury to the bladder or to the urethra. Wound of the bladder is almost necessarily fatal; extravasation of urine, with all its fearful consequences, taking place in the loose cellular tissue connecting the upper part of the viscus to the parietes of the pelvis, and in the cellular tissue behind the peritoneum. The urethra may be lacerated by the sharp edge of fractured bone, or it may be ruptured by direct violence applied to itself. The latter case sometimes accompanies partial diastasis of the symphysis, produced by the person falling astride on a beam. Either injury separately is sufficiently dangerous, and a patient with both is in a very precarious situation. Great extravasation of blood takes place in the perineum, scrotum, penis, and tops of the thighs, infiltration of urine quickly follows, retention supervenes, abscesses form, and the patient perishes under a train of symptoms already detailed when treating of the urinary organs.

The treatment is seldom satisfactory. Absolute rest must be procured, and with this view the limbs are to be secured, and a broad band passed round the pelvis. The state of the viscera must be attended to; collections of matter must be evacuated; and all other untoward symptoms must be actively met, and their consequences either adverted or got over as far as possible.

Fracture of the _Sacrum_ is uncommon, as also detachment or fracture of the _Coccyx_. The former accident happens in consequence of a fall from a great height. There is little or no displacement whether the fracture is transverse or longitudinal; sometimes there is splintering of the bone. Acute pain is occasioned by motion of the limbs and of the trunk, and by pressure over the injured part. Abscess is apt to follow, both under the integument, and in the concavity of the bone, and the chief duty of the surgeon is to prevent this if possible.

_Fractures of the Thigh._—On account of the thick muscular covering, much attention is required to enable the surgeon to form an accurate diagnosis regarding the effects of an injury of the upper part of the femur. The necessity for ascertaining what the injury really is, need not be insisted on. Consequences dreadful to the patient have too often followed blunders in diagnosis. As in the accidents of the shoulder-joint, some idea as to the exact injury may be formed by ascertaining how the force was applied; but this, alone, may sometimes mislead. Careful manipulation is to be chiefly trusted to.

Fracture within the capsule is met with most frequently in those of advanced age, when the form of the neck of the bone has been altered,—when it has become shorter, and attached less obliquely to the shaft, as is sometimes the case; the bones, too, are then more brittle than in earlier life. The accident often happens from slight force, applied either to the farther end of the bone or to the trochanter, as by a fall in going up or down stairs. Though the height often be not great, yet the patient’s energies are weakened, he can make no effort to break the fall, and the weight of the body is thrown on either the fore or the back part of the trochanter. Though the fracture, in such an accident, generally extends beyond the capsule, and the processes are broken to a greater or less extent, yet occasionally the head of the bone is separated by transverse break of the neck without farther injury. This fracture occurs sometimes in those of middle life; and even in children, separation of the head of the bone may on good grounds be supposed occasionally to take place.

The marks of fracture within the capsular ligament are inability to move the limb, pain about the joint on attempts being made to move it, and shortening to a slight extent, as ascertained by comparison with the sound limb; the patient being laid straight on his back, with the crests of the ilia in a line, either the knees or the ankles are looked to, and the comparative length of the limbs thereby observed. In some cases, neither shortening nor deformity is apparent for some time after the accident; there is merely want of power, and crepitation produced by rotation; but retraction of the thigh would after a time inevitably occur, and has done so when the nature of the injury was not at first ascertained, nor proper treatment adopted. Most frequently there is eversion of the toes, and to a considerable extent; sometimes there is inversion, and this is owing to the limb either having been placed in that position in falling, or having acquired it after the injury has been inflicted. The rotators outward are the more powerful; the limb naturally inclines outwards, and when in the recumbent posture, the weight of the foot favours eversion. But in fracture the muscles do not act as in a sound limb; and when the limb is once placed, the patient will not by his own efforts alter the position. Thus it is that inversion not unfrequently happens in this form of fracture, although the opposite state is that which, from a consideration of the muscles involved, is _à priori_ to be expected. In inversion the limb presents somewhat of the appearance arising from the most common luxation; but it possesses greater mobility, and has not the want of prominence occasioned by displacement of the articulating extremity of the bone. The facility of lengthening the member, and the crepitation felt on a proper and more attentive manipulation, will remove all doubt.

On examining the injured hip, motion to some extent can be effected, though with excruciating suffering to the patient. On stretching the limb to its original length, and then rotating slightly, crepitation can be felt by the hand, or heard by the ear, placed over the trochanter major.

Fracture is much more frequently met with outside of the capsular ligament, generally passing obliquely through the trochanters, and communicating with fissures in various directions. Splinters are often detached, and sometimes the small trochanter is broken off. Here, also, there is inability to move the joint, violent pain on attempting it, swelling and deformity of the member; there is shortening to a greater extent than in the fracture within the capsule; there is free motion in all directions; rotation, abduction, adduction, flexion, and often extension, can be effected to an unnatural and unusual extent—the degree of motion is no longer limited by the ligamentous attachments of the head and neck of the bone. Here, also, the limb is most frequently everted, but occasionally inverted; and that even when, from the direction and extent of the fracture, neither the rotators outwards nor the rotators inwards have been deprived of the power of acting.

In some cases of fracture, partly within and partly without the capsule, all the usual marks of this injury are present, but it is impossible to move the limb without employing considerable force. This arises from the broken portions being jammed together, the neck of the bone being, as it were, driven into and wedged in the cancellated texture of the trochanter major, or of the upper part of the shaft.

The trochanter major is sometimes, though rarely, detached, without separation of the neck of the bone from its shaft. In this injury there is apparent lengthening of the limb, and flattening of the hip; the patient is able to use the member, though not freely. Before swelling has taken place, crepitation can be perceived on laying hold of the trochanter whilst the limb is in motion; and the trochanter itself is found to be in a slight degree moveable.

Fracture of the upper part of the shaft is attended with immediate and great shortening; the limb is much misshapen, and lies on its outer side, with the knee partially bent. The upper fragment of the bone projects; the resistance to the action of the psoas and iliacus is in a great measure done away with, consequently these muscles raise the upper, whilst the lower end falls back and is drawn upwards behind the other. In mismanaged cases, I have found on dissection the lower end of the bone lying in the sacro-ischiatic notch, and a process advancing very different from reparation—necrosis. The marks of this accident are so conspicuous, that the surgeon is satisfied of what has happened without enquiring for crepitation. Rapid and great swelling takes place, if reduction and coaptation are not soon resorted to; the bloodvessels are torn more and more by the ends of the bone, and effusion of blood into the intermuscular cellular tissue is easy. Very soon more extensive and dangerous swelling takes place, the result of inflammatory action, accompanied with startings of the muscles and greater retraction of the limb.

Fractures of the middle and lower thirds of the bone are not attended with such great risk, and are more manageable in every way. There is less disfiguration—the ends of the bone are not drawn by the action of the muscles so far apart. The fracture is either oblique or transverse, according to the direction of the force applied; and the bruising and the degree of swelling are also dependent on the same circumstance. From transverse fracture fissure sometimes extends, separating one or other condyle.

The reparation of injury in the upper part of the femur is opposed by a variety of circumstances. Fractures of the neck of the bone are almost uniformly met with in those whose powers of life have been nearly exhausted. The whole injury is confined within the synovial capsule, and the fibrous tissues which support that are unyielding, and but slightly vascular; consequently, in fracture of the neck of the femur, there occurs none of the swelling and increased vascularity of the surrounding tissues, which follow fracture of other bones, or other parts of this bone: no temporary callus can be formed; from this cause, support of the disunited parts is deficient. The head and neck of the bone are not so well supplied with bloodvessels as the other parts; those arteries which pass along the ligamentum teres are the chief support. And perhaps the influx of blood is not increased, in consequence of injury, to such a degree as in other parts; in these, when the surrounding parts are bruised or otherwise injured by fracture in their immediate vicinity, their vascular action is soon excited, the vessels ramifying on the periosteum are enlarged, and blood is poured into the bone at all points. Instead of these salutary changes, the secretion of synovia is increased, and a fluid, perhaps vitiated, surrounds the bone, and is interposed betwixt its ends. There is also difficulty in performing accurate adaptation of the broken ends, and in securing retention so long as is necessary for union; the limb has a tendency to retraction; in readjusting the apparatus, when become loose, the broken surfaces are rubbed on each other, and thus any union which may have been in progress is interfered with. In consequence of all this, union seldom takes place by bone; it has occurred, and will occur, in favourable cases, when the fibrous investment of the neck of the bone does not happen to be torn, and under good treatment. Two sketches which, through the kindness of Sir Astley Cooper, I am enabled to introduce here, show the union complete: the patient from whom this was taken had received other severe injuries, and very little attention had been paid to that of the hip. But it is an undeniable fact, that the circumstances which of a necessity follow fracture at this point are inimical to its effective reparation. The broken ends are sometimes united by fibrous tissue. Most frequently no union takes place, and the broken surfaces gradually become smooth, polished like a bit of china, and adapted to each other; a false joint is formed, but at the same time the capsular ligament, and tissues exterior to it, are thickened and strengthened, and so the unnatural motion is limited. The rough and irregular portions of the bone are absorbed, and the neck of the femur, from interstitial absorption, almost disappears; its diminished head lies in and is attached to the cotyloid cavity, and is rubbed upon by the opposed surface of the shaft. Shortening of the limb is an inevitable result: at first the power of motion is slight, and the support afforded to the body weak; in course of time the member becomes strong and useful.

Many bones are preserved and exhibited, in which fracture of the neck of the thigh-bone, with bony union, is supposed to have taken place; but there are strong grounds for suspecting that many such have not sustained actual fracture. The neck of the bone may be shortened, and set on awkwardly, and there may be masses of new osseous deposit round the neck and the trochanters. Perhaps the history of the case is known.—An old person sustains an injury of the hip by falling, or by a blow on the trochanter; great lameness ensues, and, after a confinement of many weeks, the patient begins to use the member, which, however, remains considerably shortened. But all this may have taken place, and on examination after death, the parts may have presented the appearances above alluded to, without any fracture. The change in the bone is the consequence of diseased action induced by the injury. The bloodvessels of the bone and its coverings are excited, and new osseous matter is formed at various points; at the same time, interstitial absorption of the cancellated texture of the neck gradually advances, and the bone is consequently altered in length and form. These appearances alone, therefore, do not warrant the confident belief of fracture having occurred, even though the history should seem to favour the assumption. And it ought to be recollected, that mere bruising of the parts about the hip is not unfrequently attended with inability to move the limb, with eversion of the foot, so as to relax the muscles which have suffered, and sometimes with slight apparent lengthening. This change in the form of the head and neck of the thigh-bone is not found only in old subjects. Some drawings from patients under forty and fifty years are given at pages 87 and 88, exhibiting in a remarkable manner this deformity.

In many patients advanced in life, who have sustained fracture of the neck of the femur, there is little, if any, chance of union. In these cases, the application of apparatus with the view of adapting and retaining the parts, is productive of great annoyance, and is apt to produce either ulceration or sloughing of the integuments at various parts; and confinement to one constrained position for a considerable time has a mischievous effect on the general health. Instead, the limb is placed in the easiest posture, either extended and slightly retained, or bent over a double inclined plane formed by pillows, with the knee of the affected side fixed to the opposite; a broad band is passed round the trochanters and pelvis, so as to restrain motion without causing inconvenience; and when pain about the thigh is troublesome, fomentation may be used. After some weeks, when the uneasy feelings have subsided, the position is changed, the patient is set up, and encouraged to move about, supporting the weight of the body upon crutches.

In more favourable subjects, whether the fracture is suspected to be without or within the joint, either entirely or partially, the broken surfaces are to be brought in contact, and retained immoveably in apposition for a time sufficient to admit of union. The limb is put up in apparatus not requiring removal, and but little readjustment. This can be effected only in the extended position. Many splints, with foot-boards, straps, and screws, are intended for this purpose, some to be attached to the injured limb, others to the sound one; but the apparatus which is most simple, and easily procured at all times and in all circumstances, is at once the best and the most efficient. This is a straight wooden board, not too thick to feel cumbrous, and not too thin to be pliable or easily broken; in breadth corresponding to the dimensions of the limb, in length sufficient to extend, from two, three, or four inches beyond the heel, to near the axilla, deeply notched at two places at its lower end, and perforated by two holes at the upper. The splint, well padded, is applied to the extended limb, the ankles being protected by proper adjustment of the pads. The apparatus is retained by bandaging. A common roller is applied round the limb, from the toes to near the knee, so as to prevent infiltration, which would otherwise follow pressure above by the rest of the apparatus. The splint is then attached to the limb by involving both in a roller from the foot to above the knee; and in doing this, the bandage, after having been turned round the ankle, should be passed through the notches, so as to be firmly attached to the end of the splint, thereby preventing the foot from shifting. A broad bandage is applied round the pelvis over the groin, and down the thigh, investing all that part of the limb left uncovered by the previous bandaging. A broad band, like a riding belt, is fastened round the pelvis, so as to bind the splint to the trunk, and thereby keep the broken surfaces of the bone in contact. A large handkerchief, or shawl, is brought under the perineum, and its ends secured through the openings at the top of the board. It is evident that, the splint being thus securely fixed and made as part of the limb, tightening of the perineal band will extend the member, and preserve it of its proper length. By care and attention in applying the apparatus, and in adjusting the cushions about the ankle and perineum, there is little or no risk of the skin giving way. The bandages will require to be reapplied once or twice during the cure, and the perineal band should be tightened frequently. The apparatus is retained for six or eight weeks, the time necessary for union varying according to circumstances. After its removal, great care must be taken at first in moving the limb and in putting weight upon it: it should be accustomed to its former functions very gradually.

The same apparatus in the most effectual for all fractures of the thigh; but those near the distal extremity, and in the lower third of the bone, may be managed tolerably well on the double inclined plane—M’Intyre’s splint, the thigh-piece of which is double, the one portion sliding on the other, and made to shorten and lengthen by means of a screw, without removal from the patient. To this the limb is secured by bandaging from the toes upwards; the upper bandage, which should be broad, being continued close to the perineum, and then passed several times round the loins. By elongating the thigh-piece by means of the screw, extension is kept up. Great complaint is commonly made by the patient of pain and stiffness in the knee for a long time after the treatment of broken thigh in the bent position.

There is no possibility of treating fracture of the thigh, with any satisfaction or credit, on the outside of the limb with the knee bent; however attentively the splints are placed, shortening, eversion of the foot, and deformity of the whole limb, are sure to follow. No greater absurdity and cruelty are conceivable than leaving the fracture unadjusted for weeks, making attempts to subdue consequent over-action, and then endeavouring to reduce and retain the bones at a period when otherwise they should have been firmly united. “Experience teacheth” not “fools,” and cannot amend those whom prejudice has blinded.

Compound fracture of the thigh, if circumstances do not forbid attempts to save the limb, is to be reduced and retained in the same way as the simple, the wound being attended to, and means taken to subdue inflammatory action. Abscesses must be opened timeously, the limb must be equably supported, and the powers of the system preserved.

The application of force may, in young persons, detach the epiphysis of the lower end of the femur, and displace it to a greater or less extent; and if the accident be not detected, the epiphysis will become consolidated with the shaft in this unnatural position, impairing the usefulness of the member, and probably laying the foundation for disease in or around the articulation. Reduction is easy, and the retentive treatment is the same as that recommended generally for fracture of the thigh near the knee-joint. I have met with one well-marked case of this form of diastasis. A girl sustained an injury of the knee when fourteen years of age, in consequence of the limb having been entangled amongst the spokes of a carriage-wheel in motion; the knee continued painful and swollen, and she had a halt in walking. After the lapse of about three years, extensive suppuration occurred in the lower part of the thigh and round the knee-joint, and amputation very soon became indispensable for the preservation of life. The synovial apparatus was much diseased, and the epiphysis of the lower end of the femur was found displaced forwards and upwards, so that only the posterior part rested on the tibia; in fact, it was turned, as here shown, almost half round on the shaft: firm union by bone had taken place.

Fracture of the _Patella_ is generally simple. It is occasioned either by great force applied to the bone directly, or by the action of the strong extensor muscles—the knee being suddenly bent, and the bone snapped across over the end of the femur. The degree of immediate swelling, and of incited action, will vary according to the mode of infliction. When the injury is caused by a blow upon the part, the bone may be broken either transversely or vertically, or both; either the upper or the lower portion may be vertically split, usually the upper; sometimes there is considerable comminution. Muscular action produces transverse fracture only.

The nature and extent of the injury is readily ascertained. The patient is unable to extend the limb, and cannot support weight on it; in the bent position, a space is felt in the situation of the patella, the lower portion is found nearly in its place, but the other is drawn upwards on the fore part of the thigh; by extension of the limb and flexure of the thigh the portions are approximated, and crepitus is perceived when they are brought in contact. These symptoms are perceptible through any quantity of bloody effusion. By attentive manipulation, comminution and vertical splitting may also be detected. The circumstances attending the accident will, in most instances, lead to a tolerably accurate expectation of the state of parts.